Machine for shaping uppers over lasts



April 1929. B. JORGENSEN MACHINE FOR SHAPING UPPERS OVER LASTS 7 Original Filgd April 22. 1922 Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

BERNHARDT J'ORGENSEN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE. MACHINERY CORPORATION, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR SHAPING UPPERS OVER LASTS.

Original application filed April 22, 1922, Serial This invention relates to machines for shaping uppers over lasts in the manufacture of boots and shoes, and more particu larly to means for controlling the insole on the last, this application being a division of a copcnding application, Serial No. 556,063, liled on April :22, 1922, which has resulted in Letters Patent No. 1,667,789, granted on lrlay 1, 1928. The invention is herein illustrated in its application to a machine for pulling uppers over lasts, but it will be recognized that in its more general aspects the invention is not limited to pulling-over mzu-hines.

The present invention is especially useful in its application to machines for pullingover or lasting tennis shoes or the like, although not necessarily limited to that use. Shoes of that type usually have insoles of rubber composition which are comparatively soft and yieldable and are, therefore, liable to become wrinkled or otherwise displaced on the last. It has been found that such wrinkling or displacement of a portion of the insole may occur, for example, in the pulling-eyeioperation by reason of the pressure on the insole of the several sole rest feet with which pulling-over machines are customarily provided or by reason of a slight relative displacement of the last and lhe sole rest feet that may occur when the upper pulled by the grippers. As a result, a portion of the insole near its edge may be lifted or curled away from the bottom face of the last, so as to interfere with the proper luyin g of the upper inwardly over the insole. This invention :urcordingly provides novel means for correcting such a condition when it ocmlrs. The construction shown as an illustrative embodiment of the invention comprises manually operative means for effecting relative nmvement of the several sole rest feet of a pulling-over machine both lengthwise and widthwise of the last to straighten the insole after the upper has been sul'ijected to tension by the pulling 1uean:--;. The construction shown further includes means for retaining the sole rest feet in the positions to which they are moved in straightening the insole, and automatic means for returning them eventually to their starting positions.

No. 556,063. Divided and this application filed April 16, Serial No. 184,394.

The invention will now be more particularly described by reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 shows partly in side elevation and partly in section a portion of a pulling-over machine in which the invention is embodied;

Fig. 2 is substantially an inverted plan View of the sole rest, on a scale larger than that of Fig. 1, with parts broken away, and

Fig. 3 is a view in side elevation of a part of the means provided for controlling the sole rest feet.

Since the machine in which the invention is herein shown as embodied is of a wellknown type characteristic features of which are described in various prior United States Letters Patent, including Letters Patent No. 1,029,387 granted on June 11, 1912, upon an application of R. F. Mcl eely, and also in the copending a plication hereinbefoi'e mentioned, only S1101 parts will be herein described in detail as are intimately related to the features of this invention. It will be understood that, in o crating on tennis shoes or the like, a last wit an upper thereon and with an insole rubber composition loosely mounted on its bottom face is presented to the machine, and that the margin of the upper is then engaged by a toe gripper ll) and by opposite side grippers, one 0 which is shown at .12, and is pulled to shape the upper tightly over the last, after which the machine comes automatically to a stop with the upper held under tension, as illustrated in Fig. l. The last is supported against the pull of the grippers by a sole rest, which as herein shown comprises a pair of feet 14 arranged to engage the insole at the opposite sides of the forepart at the rear of the toe and another foot- 10 arranged to engage it centrally near the toe end of the last the different feet having teeth or serrations thereon for engaging the bottom face of the insole. The feet 14 and 16 are supported on a carrier 18 which in the upper-pulling operation of the grippers 1s swung downwardly a short distance by a cam 20 inengagement with a roll 22 on the carrier to depress the forepart of the last and thereby assist in the pulling of the upper.

It has been found that in this upperpulling ope 'ation ell'eeted. by the combined movements of the grippers and the sole rest there sometimes results a wrinkling or cur ing up of a portion or portions of the ins in near its edge, d no to the pressure ol the sole rest feetthereon and to a slight shifting or twisting movement of the last relatively to the sole rest thatmay occur when the upper pulled by the grippers. lly the present invention there is provided means for correcting such a. condition by filliitlllltlllilllg' the insole through IGllttlV-L} niovenn nt oi. the different sole rest feet lenethwisa and widthwise oi. the last. For this purpose the side feet let are mmintod on the trout ends ol arms 2%. which are mounted to turn about pivot studs 26 carried by a. bracket Bil/ aut on the carrier 18, and the front foot 16 is supported on a bar ill) which is :uiljustably secaired to a holder 31 mounted in the carrier 18 for sliding movement lei .xhwise of the shoe relatively to the brac et A spring 82 tends, as in prior ctmstructions, to maintain the holder 31 in a retracted position, and. for moving it forwardly against the resistance of the spring a pinion "l is provided in engagement with "ach teeth 36 on the holder. the pinion being formed on a shaft 38 (Fig. to which is secured a hand lever 4L0. Secured. to the holder 31 is a plate 42 which carries a. pin el-fl projecting into slots 46 formed in the rear ends ol the arms 24.. lVhen forwari'l movemei imparted to the holder 31 by the hand. lever fit), the p n 44lwill thus act to swing the arms 21- in. direc-lions such as to separate the side feet lat while the front foot 16 is being moved forwardly by the forward movement of the holder. In this manner the forepart ol the insole may be straightened on the last, if necessary so that all portions of it will lie close to the bottom taco ol the last. while the machine i. at rest after the upper uiling; operation.

There is further provided means :lior holding the different sole rest feet .in the poaitions to which they are moved. by the hand lever 4:0, comprising a. .sl'flfll1g-CO1lllf0llPal pawl 48 (Fig. 3) a rranged to engage a ratchet wheel 50 fast on the shaft 38. In order that the sole rest -feet shall. be returned automatically to their startine positirnis by the action of the spring 82 on do holder til. alter the operations on the shoe have 1 been completed, the pawl lS is further controlled by a relez sing member 52 carried by a slide 5-l which .is a char: eteristic element of machines of the type illustrated. It will be understxmd that earl in the evcleot the machine the slide 54 is moved. toward the left (Fig. 3), thus releasing the pawl 48 to permit it to engage the ratchet wheel. 50 and thus to perform its holding function when the hand lever 4:0 is ope fated, and that in the latter part of the last stage of the cycle of the machine the slide moved toward the right and. thus arises the member 52 to engage the pawl and to d.i:=;r mnect it from the ratchet wheel, as illustrated in Fig. 3.

Having described the inrentioi, what I. claim as nei i and desire to secure by Let ters latent ol the lnited States is 1. In. a mach ne of the class d: ribed. the c m1bination with means for pulling an upper ove' a. last har o an. insole thereon, (it a sole rest eompriiunn' a plurality oli' mean hers for engaging the insole respertivelv in di'l'lrrent lo 'a'lions over the bottom oi i the last. and means for ellfecting relative movement of said members both lengthwise and laterally ot the last to strai d the i on the last while the upper tension by the upper-pulline; means.

2. In a machine oil the class ilee-cr luwl the conihinatioi'i with in lane for pulling; an upper over r last having insole thereon. at a sole rest comprisiinr members :tor engaging,- the insole 1'ei: cti\a:l.3. in dillj'ereut locations widthwise of the last, and m ans 'lor marine; said members apart to inhten the insole on the last while the upper ls heldv und r till that tension by the uppinr-pullinp; means.

3. [n a ma chine ot the cla s descrioed. the

combination with means pulling}; an upper over a last having an insole thereon. oi a sole rest comprising ineinbei.':-; :l'or einran iinr the insole reri-spectively at opposite side-i ot the torepart and a meniljier lor curta ling the insole nearer the toe end of the last than said inst-named members, and means .tor moving said lirst named membcn-i outwardi i towi rd the sides oi. the last and tor moving said last-nanual member forwardly to straighten the insole on the last. while the upper is held under tension by the upper pulling means.

l. in a. marhine oi the class described. the combination with means tor pulling: in upper orer a last havii-e; an insole thereon. oil a sole rest- (3(lllll)l.lfllll a. plurality of ineinlers :tor engaging; the insole tive v in dilterent loiations, nuinual means For effecting re re inorrinrnt of said lrtiar; ll ol" members both le. thwise and. the last to strai'" i the insole on the hat while the uppe ieid under tension. the upper-pull n et-hauisin llif 1.Ql'tli]l1lj;1 said in anbers in the positions to leans.

t which they are thus moved. and automatic means tor sun intently return said. members to their mil ial positions.

In a machine oi the class deecribed the combination with means for sl'iapiun' an upper over a last having an insole thereon, ot a sole rest comprising a carrier and. members supported thereon for engagement witn the insole res eetively in dillerentlocations over the bottom of the last, and

lllfi lll) Iii)

mechanism connected to said members for moving them relatively apart both length wise and laterally of the last While in engagement with the insole to straighten the insole on the last.

(5. In a maghine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of asole rest comprising a carrier and a plurality of insole-engaging members supported thereon comprising members for engaging the insole respectively in different locations widthwise of the last and a mono her for engaging the insole nearer the toe end ot the last than said first named mom bore, and mechanism connected to said members for moving the first-named mem bers outwardly toward the sides of the last and for moving the last-named member forwardly, while in engagement with the insole to straighten the insole on the last.

T. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, ot a sole rest comprising a member for engaging the insole near the toe end of the last and additional members for engaging the insole respectively at opposite sides of: the lorepart, and mechanism connected to said diii'erentmembers for moving said toe end member forwardly and said additional members widtliwise of the last to straighten the insole on the last.

8. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of a sole rest comprising a member for engaging the insole near the toe end of the last, additional members for engaging the insole respectively at opposite sides of the 'lorepart, said. additional members being pivoted for swinging movements widthwise ol" the last, and means for sinmltaiiieously moving said toe end member forwardly and swinging said zulditional members apart while the members are in engagement with the insole.

9. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of a solo rest comprising a member for engaging the isole near the toe end of the last and additional members for engaging the insole respectively at opposite sides of the 'liirepart, said additional members being pivoted for swinging movements widthwise of the la means for moving said toe end membur "forwardly, and pin and slot connections between said too end member and said additional memlmrs for swinging the latter apart during the forward movement of the toe end member.

10. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of a sole rest comprising members for engaging the insole respectively at 0p osite sides of the forepart, said members ing pivoted for swinging movement widthwise of the last and having teeth for engaging the bottom face of the insole, and manually operated means connected to said members for swinging them apart while they are in engagement with the insole to straighten the insole.

11'. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, at a plurality of members having serrated portions arranged to engage the insole in different locations widthwise of the last, and means for etfectin relative movement of said members wi thwise of the last to. straighten the insole.

12. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of a plurality of members for engaging the insole, and means for effecting relative movement of said members both lengthwise and widthwise of the last to straighten the insole.

13. In a machine of the class described, the combination with means for shaping an upper over a last having an insole thereon, of a member arranged to engage the insole near the toe end of the last, other members arranged to engage the insole at the sides of the forepart at the rear of said first-named member, and manuall operated means for moving said first member forwardly and for spreading said other members apart to straighten the insole.

14. In a machine of the class described,

the combination with means for shaping an upper over a last having an insole thereon,

ot' a member arranged to engage the insole near the toe end of the last, other members arranged to engage the insole at the sides of the forepart at the rear of said firstnamed member, manual means for moving said first member forwardly and for spreading said other members apart to straighten the insole, mechanism for retaining said members in the positions to which they are thus moved, and automatic means for subsequently releasing said members and re turning them to their initial positions.

In testimony whereof I have signed my name to this s ecification.

BER HARDT JORGENSEN. 

